Bwlch y Groes lies on the minor road linking Dinas Mawddwy and Llanuwchllyn, and is one of the highest tarmacked passes in Wales. Location given special mention as a great stargazing location on Snowdonia National Park website.
Weather forecast
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02/05/24
9° 86% -
02/05/24
7° 86% -
03/05/24
6° 41% -
03/05/24
5° 41%
Weather forecast for Aran Fawddwy (3.2 miles away) updated 02/05/24 at 12:01.
Local light pollution
Bwlch y Groes is estimated to have light pollution levels similar to adark site dark site location based on the latest data from the VIIRS satellite.
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Urban
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Suburban
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Semi-rural
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Rural
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Dark site
The above demonstrates the estimated effect of light pollution - graphics created using Stellarium.
Best time to visit
The below chart shows when the skies will be at their darkest at this location and therefore the best time to visit. Moonlight is shown in light yellow and the Sun's twilight in light blue. Midnight on the date shown is shown as a white line with sunset to the left and sunrise the next morning to the right. A black background with stars shows the best times for stargazing. See our dark sky calendar for more details.
Thu 2nd May
Fri 3rd May
Sat 4th May
Sun 5th May
Mon 6th May
Tue 7th May
Wed 8th May
Find more dates
If you are planning to visit this location check our dark sky calendar to find out when is best!
CalendarEvents nearby
Stay and gaze nearby
Stay at one of these stargazing-friendly accommodation providers.